It's on the northbound side between the 610 West Loop and Weslayan. Right now, all of the main lanes are blocked, but traffic is getting by on the shoulder.
We're following this developing traffic story and will have more on Eyewitness News and abc13.com.
Check real-time traffic information in our ABC13.com traffic section
Take ABC13 with you!
Download our free apps for iPhone, iPad and Android devices